main: added presigned url + favicon

Signed-off-by: nfel <nfilsaraee@gmail.com>

lib/s3.ts

@@ -1,4 +1,4 @@
-import { S3Client, PutObjectCommand, DeleteObjectCommand } from '@aws-sdk/client-s3';
+import { S3Client, PutObjectCommand, DeleteObjectCommand, GetObjectCommand } from '@aws-sdk/client-s3';
 import { getSignedUrl } from '@aws-sdk/s3-request-presigner';
 
 // Initialize S3 client
@@ -17,13 +17,14 @@ export interface UploadFileParams {
   file: File;
   key: string;
   contentType?: string;
+  makePublic?: boolean; // Set to false for private files
 }
 
 /**
  * Upload a file to S3
  */
 export async function uploadFileToS3(params: UploadFileParams): Promise<string> {
-  const { file, key, contentType } = params;
+  const { file, key, contentType, makePublic = true } = params;
 
   // Convert File to Buffer
   const arrayBuffer = await file.arrayBuffer();
@@ -33,14 +34,18 @@ export async function uploadFileToS3(params: UploadFileParams): Promise<string>
     Bucket: BUCKET_NAME,
     Key: key,
     Body: buffer,
-    ACL: "public-read",
+    ...(makePublic && { ACL: "public-read" }), // Only set ACL if makePublic is true
     ContentType: contentType || file.type,
   });
 
   await s3Client.send(command);
 
-  // Return the public URL
-  return `https://${BUCKET_NAME}.s3.ir-thr-at1.arvanstorage.ir/${key}`;
+  // Return the public URL if public, otherwise return the key
+  if (makePublic) {
+    return `https://${BUCKET_NAME}.s3.ir-thr-at1.arvanstorage.ir/${key}`;
+  } else {
+    return key; // Return just the key for private files
+  }
 }
 
 /**
@@ -69,6 +74,41 @@ export async function getPresignedUploadUrl(key: string, contentType: string): P
   return url;
 }
 
+/**
+ * Generate a presigned URL for downloading/viewing a file
+ * @param key - The S3 object key
+ * @param expiresIn - Expiration time in seconds (default: 1 hour)
+ * @returns Pre-signed URL
+ */
+export async function getPresignedUrl(key: string, expiresIn: number = 3600): Promise<string> {
+  const command = new GetObjectCommand({
+    Bucket: BUCKET_NAME,
+    Key: key,
+  });
+
+  const url = await getSignedUrl(s3Client, command, { expiresIn });
+  return url;
+}
+
+/**
+ * Generate multiple presigned URLs for a list of keys
+ * @param keys - Array of S3 object keys
+ * @param expiresIn - Expiration time in seconds (default: 1 hour)
+ * @returns Map of key to pre-signed URL
+ */
+export async function getMultiplePresignedUrls(
+  keys: string[],
+  expiresIn: number = 3600
+): Promise<Record<string, string>> {
+  const urlPromises = keys.map(async (key) => {
+    const url = await getPresignedUrl(key, expiresIn);
+    return [key, url];
+  });
+
+  const entries = await Promise.all(urlPromises);
+  return Object.fromEntries(entries);
+}
+
 /**
  * Generate a unique key for file uploads
  */